accommodating existing services within the overall framework allowing for future access and ease of maintenance by sensibly locating new services and buildings by suing common trenches.

The existing infrastructure necessitated particular solutions:

An Extremely High Voltage mains and a 4ft gas mains ran across the site. Prohibitive costs meant the site layout was adapted so that these mains would run beneath roads.

The proposed street plan necessitated the diversion of a culverted river. It was found to be the most economical solution. The culvert was relocated along the periphery of the site and runs for most of its length beneath one of the new streets.

A major sewer ran beneath the proposed site of a new housing block. After initially rejecting the idea of building over, it was decided to construct the block so as to straddle the existing sewer using piled foundations on either side. .